October in Olympia averages a daily high of 15.8°C with nights around 4.9°C. Expect roughly 15.4 wet days totalling 130.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Olympia is July–August.
Based on OLYMPIA AIRPORT, WA US (7.9km), 1995–2024. 30 years of October data.